package com.xxadmin.usercenter.config.security.handler;

import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

/**
 * 自定义 AccessDeniedHandler 用来解决认证过的用户访问无权限资源时的异常
 * 
 * @author:chenming
 * @date:2018/9/6
 */
@Component("customAccessDeniedHandler")
public class CustomAccessDeniedHandler implements AccessDeniedHandler {

    @Autowired
    private ObjectMapper objectMapper;

    @Override
    public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException accessDeniedException)
            throws IOException, ServletException {
        response.setContentType("application/json;charset=UTF-8");

        Map map = new HashMap();
        map.put("code", "401401");
        map.put("message", accessDeniedException.getMessage());
        map.put("path", request.getServletPath());

        response.setContentType("application/json");
        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
        response.getWriter().write(objectMapper.writeValueAsString(map));
    }
}
